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You searched for: creator:"Robert Caldwell"
[texts]The Prevention of Disease in Armies in the Field - Robert Caldwell
Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
Downloads: 84
[texts]Lectures on the Tinnevelly Missions, Descriptive of the Field, the Work, and the Results: With ... - Robert Caldwell
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 85
[texts]Nar̲karuṇait tiyān̲amālai =: A companion to the holy communion : itil ... - Robert Caldwell
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 238
[texts]A Comparative Grammar of the Dravidian Or South-Indian Family of Languages - Robert Caldwell
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Downloads: 304
[texts]A Political and General History of the District of Tinnevelly, in the Presidency of Madras: From ... - Robert Caldwell
Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
Downloads: 1,998
[texts]A Comparative Grammar of the Dravidian Or South-Indian Family of Languages - Robert Caldwell
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb.
Downloads: 258
[texts]Entropy Perturbations due to Cosmic Strings - Pedro Avelino
We examine variations in the equation of state of the cosmic string portion of the cosmological fluid which lead to perturbations of the background matter density. These fluctuations in the equation of state are due to variations in the local density of cosmic string loops and gravitational radiation. Constructing a crude model of the distribution of entropy perturbations, we obtain the resulting fluctuation spectrum using a gauge-invariant formalism...
Downloads: 3
[texts]Nuclear theft : real and imagined dangers. - Mabry, Robert Caldwell
Bibliography: l. 140-142
Downloads: 43
[texts]Constraints on a New Post-General Relativity Cosmological Parameter - Robert Caldwell
A new cosmological variable is introduced which characterizes the degree of departure from Einstein's General Relativity (GR) with a cosmological constant. The new parameter, \varpi, is the cosmological analog of \gamma, the parametrized post-Newtonian variable which measures the amount of spacetime curvature per unit mass. In the cosmological context, \varpi measures the difference between the Newtonian and longitudinal potentials in response to the same matter sources, as occurs in certain sca...
[texts]Pair Creation of Black Holes by Domain Walls - Robert Caldwell
In this paper we study the production of pairs of neutral and charged black holes by domain walls, finding classical solutions and calculating their classical actions. We find that neutral black holes whose creation is mediated by Euclidean instantons must be produced mutually at rest with respect to one another, but for charged black holes a new type of instanton is possible in which after formation the two black holes accelerate away from one another...
Downloads: 2
[texts]Measuring dark energy spatial inhomogeneity with supernova data - Asantha Cooray
The gravitational lensing distortion of distant sources by the large-scale distribution of matter in the Universe has been extensively studied. In contrast, very little is known about the effects due to the large-scale distribution of dark energy. We discuss the use of Type Ia supernovae as probes of the spatial inhomogeneity and anisotropy of dark energy. We show that a shallow, almost all-sky survey can limit rms dark energy fluctuations at the horizon scale down to a fractional energy density...
Downloads: 3
[texts]CBR Temperature Fluctuations Induced by Gravitational Waves in a Spatially-Closed Inflationary Universe - Bruce Allen Robert Caldwell Scott Koranda
Primordial gravitational waves are created during the de Sitter phase of an exponentially-expanding (inflationary) universe, due to quantum zero-point vacuum fluctuations. These waves produce fluctuations in the temperature of the Cosmic Background Radiation (CBR). We calculate the multipole moments of the correlation function for these temperature fluctuations in a spatially-closed Friedman-Robertson-Walker (FRW) cosmological model...
Downloads: 3
[texts]Lensed Cosmic Microwave Background Constraints on Post-General Relativity Parameters - Paolo Serra
The constraints on departures from general relativity (GR) at cosmological length scales due to cosmic microwave background (CMB) data are discussed. The departure from GR is measured by the ratio, parameterized as $1 +\varpi_0 (1 + z)^{-S}$, between the gravitational potentials conventionally appearing in the geodesic equation and the Poisson equation. Current CMB data indicate $\varpi_0=1.67^{+3.07}_{-1.87}$ at the 2$\sigma$ confidence level, while $S$ remains unconstrained...
Downloads: 2
[texts]Excitons and high-order optical transitions in individual carbon nanotubes - Stephane Berciaud
We examine the excitonic nature of high-lying optical transitions in single-walled carbon nanotubes by means of Rayleigh scattering spectroscopy. A careful analysis of the principal transitions of individual semiconducting and metallic nanotubes reveals that in both cases the lineshape is consistent with an excitonic model, but not one of free-carriers. For semiconducting species, side-bands are observed at ~200 meV above the third and fourth optical transitions...
Downloads: 2
[texts]Journal of the Society for Arts, Vol. 18, no. 887 (Volume 18) - Capt. O'Hea
"Journal of the Society for Arts, Vol. 18, no. 887" is an article from The Journal of the Society of Arts, Volume 18. View more articles from The Journal of the Society of Arts.View this article on JSTOR.View this article's JSTOR metadata.You may also retrieve all of this items metadata in JSON at the following URL: https://archive.org/metadata/jstor-41334810
Downloads: 21
[texts]Reports of the president and chief engineer of the Western North-Carolina Railroad Company - Western North Carolina Railroad Company
Caption title
Keywords: Western North Carolina Railroad Company; Railroads; Railroads
Downloads: 104
[texts]Financial report of the Western North-Carolina Railroad Company, from October 5th, 1855, to December 1st, 1858 - North Carolina. General Assembly
Caption title
Keywords: Western North Carolina Railroad Company; Railroads
Downloads: 123
[texts]The Case for Deep, Wide-Field Cosmology - Ryan Scranton
Much of the science case for the next generation of deep, wide-field optical/infrared surveys has been driven by the further study of dark energy. This is a laudable goal (and the subject of a companion white paper by Zhan et al.). However, one of the most important lessons of the current generation of surveys is that the interesting science questions at the end of the survey are quite different than they were when the surveys were being planned...
Downloads: 3
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